National Geographic Channel HD Friday

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Aviation experts contemplate the possibility that airlines could be putting lives at risk by using out-of-date statistics to calculate passengers' average weight

Climbers Tagir Izmailov and Xiao Ting explore Zhangjiajie's otherworldly landscape, which inspired the movie Avatar

The UK's engineering wonders revealed, including innovative electric flying machines, ingenious skyscrapers and a mega-stadium with a surprising historical twist

Tim and Fuzz head to Tim's hometown to rescue a rare road-going version of the early 1990s World Rally Championship Toyota Celica

The 1984 gas disaster in Bhopal, India, which caused an estimated 15,000 deaths and contaminated the area's ground water and soil for years to come

A plane crashes just short of the runway in San Andres. While bad weather is thought to be the cause, investigators uncover something more troubling

Documentary about Hitler's private army, formed in 1925 from volunteers who were subjected to intense propaganda and aspired to become part of a racial elite

A look at the role of the SS in the Holocaust, with many volunteering to run the death camps, believing the massacre was for the good of their nation

Highlights from the series

The dangerous geological forces in the Pacific Ocean's Ring of Fire, an area infamous for volcanic eruptions, earthquakes and tsunamis

The story of the Battle of the Atlantic, the longest military campaign of the Second World War as the Nazis attempted to starve Britain

The case of a plane that crashed into a neighbourhood in Sao Paulo. American and Brazilian investigators worked together to find the cause, discovering a nearly impossible failure

The story of the Second World War, featuring haunting images of Jewish persecution and footage of Hitler taken by his partner Eva Braun at his Alpine retreat

The truth behind the defeat of France, featuring footage of German soldiers celebrating on the beaches of Dunkirk, and French civilians fleeing the Nazi advance

The German air force during the Second World War, exploring an aircraft factory, a torpedo test facility and the world's most advanced jet bomber

Evidence from the disappearance of EgyptAir Flight 804 leads investigators to theorise different causes for the plane's demise

The lessons learned from nuclear disasters including Chernobyl, Fukushima and Three Mile Island, which have guided engineers toward a safer future and the pursuit of nuclear fusion

At Rome Fiumicino, the judicial police suspect a man is packing narcotics below the belt, while an Albanian woman panics when denied entry to Italy

Fuzz Townshend and Tim Shaw go on a trip to Cambridgeshire to pick up their very first supercar, a rare 1989 Ultima race car

AMO Puerto Rico sinks a marine smuggling operation as HSI shuts down a tunnel dug under the border by a cartel, and a CBP K9 finds drugs in a car

A Las Vegas crew has just one night to finish a two-day job. Tackling several last-minute wedding cakes they've got no margin for error

A mega fish order from Harvard University means an early start for a crew of Cape Cod fisherman. But it's Mother Nature who dictates the unpredictable haul

Experts from across Western Australia examine a rise in great white shark sightings and attacks on the coast in 2010

Two children are attacked by sharks within an hour on the New York resort of Fire Island. Experts try to uncover the cause of the first attacks in the state in more than 60 years

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.